scholarly journals Phenomenology of keV scale sterile neutrino dark matter with S4 flavor symmetry

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Nayana Gautam ◽  
Mrinal Kumar Das
Keyword(s):  
Dark Matter ◽  
Sterile Neutrino ◽  
Flavor Symmetry

scholarly journals Exothermic dark mesons in light of electron recoil excess at XENON1T

2021 ◽  
Vol 2021 (4) ◽  
Author(s):  
Soo-Min Choi ◽  
Hyun Min Lee ◽  
Bin Zhu
Keyword(s):  
Dark Matter ◽  
Inelastic Scattering ◽  
Small Mass ◽  
Density Current ◽  
Flavor Symmetry ◽  
Color Group ◽  
Dark Sector ◽  
The Standard Model ◽  
Electron Recoil ◽  
Relic Density

Abstract We consider a novel mechanism to realize exothermic dark matter with dark mesons in the limit of approximate flavor symmetry in a dark QCD. We introduce a local dark U(1)′ symmetry to communicate between dark mesons and the Standard Model via Z′ portal by partially gauging the dark flavor symmetry with flavor-dependent charges for cancelling chiral anomalies in the dark sector. After the dark local U(1)′ is broken spontaneously by the VEV of a dark Higgs, there appear small mass splittings between dark quarks, consequently, leading to small split masses for dark mesons, required to explain the electron recoil excess in XENON1T by the inelastic scattering between dark mesons and electron. We propose a concrete benchmark model for split dark mesons based on SU(3)L× SU(3)R/SU(3)V flavor symmetry and SU(Nc) color group and show that there exists a parameter space making a better fit to the XENON1T data with two correlated peaks from exothermic processes and satisfying the correct relic density, current experimental and theoretical constraints.

scholarly journals Sterile neutrino dark matter from generalized CPT -symmetric early-Universe cosmologies

2021 ◽  
Vol 104 (2) ◽  
Author(s):  
Adam Duran ◽  
Logan Morrison ◽  
Stefano Profumo
Keyword(s):  
Dark Matter ◽  
Early Universe ◽  
Sterile Neutrino

scholarly journals Dark matter interactions in an S4×Z5 flavor symmetry framework

2020 ◽  
Vol 102 (11) ◽  
Author(s):  
Giorgio Arcadi ◽  
Martin B. Krauss ◽  
Davide Meloni
Keyword(s):  
Dark Matter ◽  
Flavor Symmetry

scholarly journals Degenerate sterile neutrino dark matter in the cores of galaxies

2006 ◽  
Vol 458 (2) ◽  
pp. L9-L12 ◽  
Author(s):  
F. Munyaneza ◽  
P. L. Biermann
Keyword(s):  
Dark Matter ◽  
Sterile Neutrino

scholarly journals Sterile neutrino Dark Matter

2019 ◽  
Vol 104 ◽  
pp. 1-45 ◽  
Author(s):  
A. Boyarsky ◽  
M. Drewes ◽  
T. Lasserre ◽  
S. Mertens ◽  
O. Ruchayskiy
Keyword(s):  
Dark Matter ◽  
Sterile Neutrino

scholarly journals Sterile neutrino dark matter: Weak interactions in the strong coupling epoch

2016 ◽  
Vol 94 (4) ◽  
Author(s):  
Tejaswi Venumadhav ◽  
Francis-Yan Cyr-Racine ◽  
Kevork N. Abazajian ◽  
Christopher M. Hirata
Keyword(s):  
Dark Matter ◽  
Strong Coupling ◽  
Sterile Neutrino ◽  
Weak Interactions

The Sterile Neutrino as Dark Matter

2016 ◽  
Vol 66 (8) ◽  
pp. 984-992
Author(s):  
Sin Kyu KANG*
Keyword(s):  
Dark Matter ◽  
Sterile Neutrino
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